OPTICAL SIGNAL MEASURING DEVICE - NIPPON TELEGRAPH & TELEPHONE

Title:

OPTICAL SIGNAL MEASURING DEVICE

Document Type and Number:

Japanese Patent JP2014016197

Kind Code:

A

Abstract:

To provide an optical signal measuring device capable of estimating OSNR of the polarized and multiplexed signal.

An optical signal measuring device includes: an optical port for input from which an optical signal to be measured is inputted; an optical filter optically connected to the optical port for input; a polarization filter optically connected to the optical filter; and three or more of optical receivers optically connected to an output port of the polarization filter. A band of the optical receiver is set to be 0.1 times or more of a baud rate of the optical signal to be measured and also set to be 0.1 times or more of the band of the optical filter.

Inventors:

SAIDA TAKASHI
OGAWA IKUO
MIZUNO TAKAYUKI
NOSAKA HIDEYUKI

Application Number:

JP2012152804A

Publication Date:

January 30, 2014

Filing Date:

July 06, 2012

Export Citation:

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Assignee:

NIPPON TELEGRAPH & TELEPHONE

International Classes:

G01J4/04

Domestic Patent References:

JP2006042234A	2006-02-09
JPH04218735A	1992-08-10
JP2010087900A	2010-04-15

Other References:

JPN6015018136; Ｔａｋａｓｈｉ　Ｓａｉｄａ: '"Ｉｎ-ｂａｎｄ　ＯＳＮＲ　ｍｏｎｉｔｏｒ　ｗｉｔｈ　ｈｉｇｈ-ｓｐｅｅｄｉｎｔｅｇｒａｔｅｄ　Ｓｔｏｋｅｓ　ｐｏｌａｒｉｍｅｔｅｒ　ｆｏｒ　ｐｏｌａｒｉｚａｔｉｏｎｄｉｖｉｓｉｏｎ　ｍｕｌｔｉｐｌ' ＯＰＴＩＣＳ　ＥＸＰＲＥＳＳＶｏｌ．　２０，　Ｎｏ．　２６, 20121228, ｐｐ．　Ｂ１６５-Ｂ１７０
JPN6015018133; Ｋｏｉｃｈｉ　Ｍｕｒａｔａ: '"１００-Ｇｂｉｔ／ｓ　ＰＤＭ-ＱＰＳＫ　ｃｏｈｅｒｅｎｔ　ｒｅｃｅｉｖｅｒ　ｗｉｔｈ　ｗｉｄｅ　ｄｙｎａｍｉｃ　ｒａｎｇｅ　ａｎｄ　ｅｘｃｅｌｌｅｎｔ　ｃｏｍｍｏｎ-ｍｏｄｅ　ｒｅｊｅｃｔｉｏｎ' ＯＰＴＩＣＳ　ＥＸＰＲＥＳＳＶｏｌ．　１９，Ｉｓｓｕｅ　２６, 20111217, ｐｐ．　Ｂ１２５-Ｂ１３０

Attorney, Agent or Firm:

Patent Business Corporation Tani/Abe Patent Office

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